"Searching for Alien Life offers a cutting-edge, comprehensive look at one of science's biggest challenges. Includes a look at the history of the topic, recent breakthroughs, key facts to consider, an
Introduces basic scientific principles about rocks and minerals, providing instructions for simple experiments that examine such topics as hardness, formation, and erosion.
As the world population continues to rise, increasing dependency on fossil fuels, scientists are searching for alternative energy sources that cause less damage to the environment. Readers will learn
The heroic combat search and rescue work of the United States Air Force’s pararescue jumpers, or PJs, is something worth knowing about. After all, these courageous PJs are the first in line to find an
